Cloud, Security & Operations
Web Application Security
Protection for live websites and web applications: hardened configuration, a tuned web application firewall, bot and abuse controls, and fixes for OWASP Top 10 weaknesses in production.
Capability overview
What web application security involves
Web application security focuses on applications that are already running and exposed to the internet: customer portals, e-commerce sites, booking systems and admin panels. The aim is to close exploitable weaknesses quickly and make attacks harder to automate.
Work usually combines code and configuration fixes for issues in the OWASP Top 10 with protective layers in front of the application, such as a web application firewall, rate limiting on login and checkout, and a strict Content Security Policy that blunts cross-site scripting.
What is included
What we put in place
WAF deployment and tuning
Cloudflare, AWS WAF, Azure Front Door or ModSecurity rules configured in monitoring mode first, then tuned to block attacks without stopping real customers.
Security headers and TLS
HSTS, Content Security Policy, frame and referrer policies and modern TLS settings, verified with public header and TLS testing tools.
Account abuse controls
Rate limits, credential stuffing detection, multi-factor options and CAPTCHA only where abuse is actually observed.
Vulnerability fixes
Remediation of issues such as broken access control, injection and insecure file upload, made in your codebase and verified by retest.
How we work
How we deliver web application security
Exposure review
Public applications, admin paths, third-party scripts and hosting configuration catalogued to understand what attackers can see.
Quick hardening
Low-risk changes such as headers, cookie flags and TLS settings applied in the first week.
Firewall rollout
WAF placed in log-only mode, false positives studied for one to two weeks, then blocking enabled rule group by rule group.
Code remediation
Application weaknesses fixed with your developers or ours, with a regression test added for each one.
Ongoing watch
WAF events, login anomalies and new CVEs in your framework reviewed monthly and changes proposed.
Related capabilities
Related capabilities in Cybersecurity
Application Security
Security built into how your software is designed, coded and released: threat modelling, secure code review, SAST and dependency scanning in the pipeline, and developer training.
API Security
Discovery, testing and protection of the APIs behind your mobile apps, partner integrations and microservices, focused on the authorisation flaws attackers exploit most.
Cloud Security
Security posture management for AWS, Azure and Google Cloud: identity and permissions, network exposure, logging, encryption and guardrails that stop misconfigurations before they reach production.
Network Security
Design, hardening and review of firewalls, VPNs, wireless and internal segmentation across offices, data centres and branch sites, so a single compromised device cannot reach everything.
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Questions & answers
Questions about Web Application Security
Cannot find what you need? Our team responds to technical and commercial questions within one business day.
Ask a questionNo. A WAF reduces automated attacks and buys time, but it cannot fix logic flaws or broken access control. Those need changes in the application code.
Web application security hardens and protects applications already in production. Application security works earlier, building secure design, code review and testing into how software is developed.
Yes. Many engagements involve inherited sites. We start with a review of plugins, themes, file permissions and server configuration before any code changes.
Emergency measures such as blocking abusive address ranges, adding rate limits or placing the site behind a managed WAF can usually be applied within a day, while permanent code fixes follow in the normal release cycle.
Next step
Discuss web application security with Acmez
Share what you need to change, build, integrate or support. We will map the practical next step.